Improvement in flexible illuminating vault-plates



T.. HYATT. Flexible Illuminating Vault-Plates.

'No. 145,208. Patented Dec. 2,i873.

" WI'TNEBBEE. Immunwwm flaw )2 chm M,%g 7

Y drawing, making a UNITED STATES PATENT CFFIQ'E.

THADDEUS HYATT, OF NEW YORK, N. Y., ASSIGNOR TO ELIZABETH A. L.

HYATT, OF SAME PLACE.

IMPROVEMENT IN FLEXIBLE ILLUMINATING VAULT-PLATES.

Specification forming part of Letters Patent No. 145,208, dated December2, 1873; application filed October 532, 1873.

CASE 23;

To all whom it may concern Be it known that I, THADDEUs IIYATT, of NewYork, in the county of New York and in the State of New York, haveinvented certain new and useful Improvements in Elastic or FlexibleIlluminating Pavement or Roof Plates and do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying in which- Figure 1 is a perspective viewof the upper side of a roofing or pavement tile having its lightopenings inclosed, when desired, by means of my improved covering; andFig. 2 is a vertical section of the same.

Letters of like name and kind refer to like parts in each of thefigures.

In the use of illuminating-gratings for roofs, pavements, 850., it isusually desirable that during the heated term ventilation should beprovided for by uncovering the light-openin gs; but, owing to theliability which exists of damage to the contents of the space inclosedby the entrance of water through said uncovered light openings duringsudden storms, it is equally important that means should be provided foreasily and quickly closing the same.

To effect these results is the design of my in vention, which consistsin an elastic plate provided with glazed illuminating-openings, andcapable of being removed, by rolling, from a perforated supporting frameor grating, substantially as is hereinafter specified.

In the annexed drawing, A represents an elastic plate, constructedpreferably of rubber, and provided with a number of light-opci'lings,

part of this specification,-

a, each of which contains an illuminating-lens, B, that is secured inplace by any desired means. The elastic glazed plate A is placed uponand supported by a grating, G, which, as seen in the drawing, may beconstructed of or from iron or wood, and have light-openings c thatcorrespond in size and position to the glazed openings of said plate A;or, if dcsired, said grating may be composed of woven wire. As thusconstructed and arranged, the elastic plate may be easily and quicklyrolled from over the grating, so as to entirely uncover the openings ofthe latter, and permit free circulation of air through the same, whileto replace said covering requires still le as time and labor, as thenatural inclination of its material will be to resume its plane formwhen released. In addition to the advantages named, the covering is anon-conductor of heat and cold, and will substantially prevent sweatingupon the lower side of the grating.

Having thus fully set forth the nature and merits of my invention, whatI claim as new 1s- An elastic plate provided with glazedillummating-openings, and capable of being removed by rolling from aperforated supporting frame or grating, substantially'as and for thepurpose specified.

In testimony that I claim the foregoing I have hereunto set my hand this26th day of July, 1873.

THADDEUS HYATT.

Vitnesses AMBROSE MONELL, CHARLES SPYR.

